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High-speed aircraft relay dual-polarized MIMO channel modeling method

A high-speed aircraft and channel modeling technology, which is applied in the field of high-speed aircraft relay dual-polarization MIMO channel modeling, and can solve the problems of polarization asymmetry, affecting the large-scale fading and small-scale fading characteristics of the channel, etc.

Active Publication Date: 2017-10-27
XIDIAN UNIV
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Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: the current MIMO channel model has dual-polarization MIMO channel model design under the plasma sheath. It is necessary to consider polarization asymmetry, which affects the large-scale fading and small-scale fading characteristics of the channel.

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[0070] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0071] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0072] Such as figure 1 As shown, the high-speed aircraft relay dual-polarization MIMO channel modeling method provided by the embodiment of the present invention includes the following steps:

[0073] S101: Using the plasma sheath Markov state transition model to determine Loo channel parameters;

[0074] S102: Using the Loo model to establish a large-scale fading model and a small-scale fading model of the sub-channels of the relay satellite under each plasma sheath, these sub-chan...

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Abstract

The invention belongs to the technical field of measurement control and communication and discloses a high-speed aircraft relay dual-polarized MIMO channel modeling method. The method comprises the following steps: determining Loo channel parameters by utilizing a plasma sheath Markov state transfer model; establishing a large-scale fading model and a small-scale fading model of each relay satellite sub-channel under each plasma sheath by utilizing a Loo model, the sub-channels having polarization correlation through a dual-polarized MIMO model; and combining large-scale fading and small-scale fading portions of each sub-channel to obtain a polarization MIMO channel model under the plasma sheath. The method greatly reduces space and emission cost, and considers the influence of double polarization asymmetry under the plasma sheath on the channel model.

Description

technical field [0001] The invention belongs to the technical field of measurement and control communication, and in particular relates to a high-speed aircraft relay dual-polarization MIMO channel modeling method. Background technique [0002] With the rapid development of aerospace technology, the development and utilization of hypersonic vehicles has become a research hotspot in the aerospace field at home and abroad. When a high-speed aircraft flies at a speed greater than Mach 10, the plasma sheath around the aircraft will seriously attenuate and distort the signal, which will greatly reduce the channel capacity and cause communication interruption (black barrier), which greatly threatens the flight safety of the aircraft. In order to overcome or alleviate the problem of black barrier communication interruption, researchers have proposed many physical and chemical plasma suppression methods to improve the possibility of communication. These measures can theoretically re...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0413H04B17/391
CPCH04B7/0413H04B17/391H04B17/3912
Inventor 石磊杨惠婷刘彦明李小平白博文杨敏
Owner XIDIAN UNIV
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